Auxiliary device for fabric holdingdown attachments



Jan. 12, 1937.y W HElNlTZ 2,067,841

AUXILIARY DEVICE FOR FABRIC HOLDING-DOWN ATTACHMENTS Filed June 5,' 19436 4 Sheets-Sheet 1 Jan. 12, 1937. w. AEINITZ' 2,067,841

AUXILIARY DEVICE FOR FABRIC HOLDING-DOWN ATTACHMENTS Filed June 5, 1936 4 Sheets-Sheet 2 Jan. 12, 1937. WHEINITZ AUXILIARY DEVICE FOR FABRIC HOLDING-DOWN ATTACHMENTS 4 Sheets-Sheet 5 Filed June 3, 1936 Jan. 12, 1937. W HE|N|TZ 2,067,841

AUXILIARY DEVICE FOR FABRIC HOLDING-DOWN ATTACHMENTS Filed June 3, 1956 4 Sheets-Sheet 4 Patented qian.. l2, E93? .stars garant atmen AUXHLIIARY DEVKGE FR FABRE@ HLDWG- DOWN ATTACHMEN'ES Waldemar Heinitz, Chemnitz, Germany, assigner to Schubert &' Salzerlviaschinenfahrik Aktiengesellschaft, Chemnitz, Germany Application .rune e, i936, seriali No. 83,363 En Germany December 6, i935 vl position at whichl time the instep needles are placed in suspense. Moreover, in each division the distancebetween the associated holding down devices, occupying the operative position, must be smaller than the width of the leg portion.

Therefore, during swinging the holding down devices into the operative position as well as into the inoperative position, the danger exists,

that the holding down devices come into contact with the fabric and easily cause damages ofthe 2Q leg portion'of the stocking.

The object of the present invention is to obviate the above mentioned drawbacks and to obtainthis end, means are provided -for preventing contact between the leg portion-and the holding down devices during swinging of the latter into and out of the operative position.

In the accompanying drawings some embodiments of devices according to the present invention are shown by way of example.

In these drawings:v A

Fig. 1 is a side elevation of one embodiment'of the invention,

Fig. 2 illustrates a plan view of the shownin Fig. 1,

Figs. 3 and 4 show a part sectional side eleva-l tion and a plan view respectively of a modification of the device according to the invention,

Fig. 5 is a detail View,

Figs. 6 and 7 show a plan View and a side ele- 40 vation partly in section respectively ofga further rnodification of the device according to the invention, and

Fig.'8 is a perspective View of the device shown in Figs. 6 and 7. The same reference characters are used to designate corresponding parts of the different figures.

According to the construction shown in Figs. l

'50 and 2, two bearings 2 are fixed to the frame i of the knitting machine. Rotatably mounted in the bearings 2 are sleeves 3 which carry two rods i 5 having a non-circular cross section and adapted to beshifted in the longitudinal direction with regard tc each other. In each division,

device a holding down finger 6 is mounted upon the rod t and a holding down finger 'l upon the rod 5.

During the manufacture of the leg portion, the holding down lingers 6 and Hare, as shown in dash-and-dotted lines in Figs. 1 and 2, swung 5 backwardly and may occupy any position in the division.

If` the manufacture ofv the heel portions is started and the holdingdown fingers and. 'i do not occupy already the position shown in 1o dash-and-dotted lines in Fig. 2, they must loel brought out of the range of the leg portion by shifting the rods il and 5 with respect to each other. Without the danger of coming into contact with the leg portion, the holding down fin- 15 gers 6 and l may then be brought into the position shown in dotted lines in Fig. 2, whereupon the rods t and 5 can be shifted with respect to each other until the holding down. ngers 6 and l occupy the operative position, shown in full 20 lines in Fig. 42, lin which they may bear against the loops of the heel portions to hold them ofi' the sinkers 8.

-damaging the latter. 3@

In the modied construction of the device shown in Figs. 3-5, holding down arms 9 and it are rotatably mounted upon a Shaft l l journalled in the bearings 2. Adjustable rings l2, i3 and Hl, l5 respectively serve to prevent shifting of 35 the arms 9 and lll in axial direction of the shaft and to hold them separated from each other in a distance suitable for holding down the heel portions.

Near the frame l of the knitting machine, 40 wires or rodsl6 and l'l extending all over the length .of the machine are provided upon which. slides i8 and i9 are adjustably arranged.

The holding down arms 9 and i@ occupy, during the manufacture of the leg portion, the posil5 tion shown in dash-and-dotted lines in Fig. 3. At the beginning of the manufacture of the heel portions, the shaft il is turned by means of the handle 20, so that the holding clown arms s and iD are brought into the position shown in 5o full lines in Figs. 3 and 4. The distance between the arms 9 and Hi is always suitable for holding down the heel portions of a stocking. To prevent the leg portion coming into contact with the holding down arms, the wires or 55 rods I6 and I 'l respectively are shifted with respect to each other so far, that the distance -between the slides I8 and I9 is smaller than the smallest distance between the holding down arms 9 and I0, so that, as shown in dash-and-dotted lines in Fig. 4, the edges of the fabric are shifted against each other and a contact between the latter and the holding down arms is prevented, whereby damaging of the fabric is impossible.

According to the modiiication of the new device shown in Figs. 6-8, the holding down arms 9 and I0, rotatably mounted upon the shaft 22, also permanently have a distance from each lother suitable for holding down the heel portions. I

In bearings 23 of the frame `I ofthe machine, a shaft 24 is rotatably arranged. In each division, a plate 25 is xed to the shaft 22. The middle portion of the plate 25 is cut away and the connecting edges 2B, 21 between the small middle portion 3D and the large side portions` 28 and 29 respectively are formed as inclined curves as may best be seen from Fig. 6. The plate 25 simultaneously ,serves to cover the holding down devices in the position of rest.

If the holding down arms 9 and IIJ are not used, the plate 25 is brought into the position shown in full lines in Figs. 6 and '7, to prevent hurting of the operator by the draw off hooks 3i and 32 provided at the arms 9 and I0 respectively'.

As soon as the manufacture of the heel portions is started, the plate 25 is swung into a vertical position, indicated in dash-and-dotted lines Fig. '7, so that, as clearly shown in the perspective view (Fig. 8), the longitudinal edges of the fabric 2| are shifted against each other in such a manner, that the width of the fabric is smaller `than the distance between the holding down arms 9 and I0. The holding down devices may now be swung into the operative position without coming into contact with the fabric. After the completion of the heel portions, the plate 25 is again swung in the position shown in Fig. 8, so that, during movement of the arms 9 and I 0 into the postion of rest, there is no dangerv of damaging the fabric 2l.

What I.claim is:

l. An auxiliary device for holding down attachments, acting upon the fabric during the manufacture of the heel portions upon straight knitting machines adapted to produce stockings in a single operation and to knit the heel portions while the needles, producing the instep portion of the stocking, are placed in suspense, comprising meansfor preventing contact between the holding down devices and the leg portion of the stocking during swinging the holdingl down devices into and out of the operative position.

2. An auxiliary device for holding down attachments, acting upon the fabric during the manufacture of the heel portions upon straight knitting machines adapted to produce stockings in -la single operation and to knit the heel portions while the needles, producing the instep portion of the stocking, are placed in suspense, comprisingl bearings, a sleeve rotatably mounted in each of said bearings, and two rods of a noncircular cross section arranged in contact with each other and adapted to be shifted with respect to each other in the longitudinal direction, one of said rods carrying the parts of the holding down devices provided at the right hand side of the middle of each division of the machine, while the other of said rods carries the parts of the holding down devices arranged at the left hand side of the middle of each division of the machine.

3. An auxiliaryy device for holding down attachments, acting upon the fabric during the manufacture of the heel portions upon straight knitting machines adapted to produce stockings ina single operation and to knit the heel portions while the needles, producing the instep portion of the stocking, are placed in suspense, comprising two draw elements, extending all over the length of the machine, and a slide for each division adjustably mounted upon each of the draw elements.

4. An auxiliary device for holding down attachments, acting upon the fabric during the manufacture of the heel portions upon straight knitting machines adapted to produce stockings in a single operation and to knit the heel portions while the needles, producing the instep portion of the stocking, are placed in suspense, comprising a swingably arranged plate for each division, the ends of said plate being larger than the middle portion, and the connecting edges between the large ends and the small middle portion beingformed as inclined curves extending inwardly.

WOLDEMAR HEINITZ. 

